Field definition and scope:

Field 754 contains an added entry in which the entry element is the taxonomic name or category associated with the item described in the bibliographic record.  Subfields $a and $2 are always used.

The National level record requirement for this field is Optional.

Field 754 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position

Description

NLR

MLR

Repeatability

Field 754

Added Entry - Taxonomic Identification

O

O

R

Indicator:

 

 

 

 

First

Undefined; contains a blank

M

 

 

Second

Undefined; contains a blank

M

 

 

 

 

 

 

 

Subfield code:

 

 

 

 

$a

Taxonomic name

M

O

R

$c

Taxonomic category

O

O

R

$d

Common or alternative name

O

O

R

$x

Non-public note

O

O

R

$z

Public note

O

O

R

$0

Authority record control number or standard number

O

O

R

$2

Source of taxonomic identification

M

O

NR

$6

Linkage

A

O

NR

$8

Field link and sequence number

O

O

R

Input conventions:

Punctuation

Content designator history:

Subfield $a - Taxonomic name/taxonomic hierarchical category  [redefined, 2001]:  Subfield $a was redefined as taxonomic name.  Prior to this time, subfield $a contained the taxonomic hierarchical category code to which the taxonomic name belonged.

Subfields  $c - Taxonomic category  [new, 2001]

$d - Common or alternative name  [new, 2001]

$x - Non-public note  [new, 2001]

$z - Public note  [new, 2001]

Subfield $0 - Authority record control number  [new, 2007]

Related MARC fields or documents:

880  Alternate Graphic Representation

Source Codes for Vocabularies, Rules, and Schemes:

Taxonomic Classification Source Codes

See also:

700-75X  Added Entry Fields

Variable Data Fields